Results 181 to 190 of about 3,208,584 (371)
Spatial modeling of crime dynamics: Patch and reaction–diffusion compartmental systems
Mathematical Methods in the Applied Sciences, EarlyView., 2023 We study the dynamics of abstract models for crime evolution. The population is divided into three compartments, taking into account the participation in crime and incarceration. Individuals transit between the three segments, assuming that having more contact with criminally active people increases one's risk of learning and acquiring the same traits;
Julia Calatayud +2 more
wiley +1 more source
ELECTROPHORESIS, EarlyView.ABSTRACT The first patent to describe dielectrophoresis (DEP) as a means and process to separate particles from a mixture was granted by the US Patent Office to Henry Stafford Hatfield in 1924. The novel methods of sample preparation and designs of electrode geometry covered by the patent's disclosures and claims describe the basis for most present‐day
Ronald Pethig
wiley +1 more source
Mathematical Methods in the Applied Sciences, EarlyView., 2023 This contribution aims at studying a general class of random differential equations with Dirac‐delta impulse terms at a finite number of time instants. Our approach directly addresses calculating the so‐called first probability density function, from which all the relevant statistical information about the solution, a stochastic process, can be ...
Vicente J. Bevia +2 more
wiley +1 more source
eCherry: A Modelica Library for Modular Dynamic Modelling of Electrochemical Reactors
Electrochemical Science Advances, EarlyView.ABSTRACT Electrochemical reactors offer promising pathways for defossilizing the chemical industry. To understand the operation as well as to evaluate and optimise their performance and efficiency, modelling presents a crucial tool. Currently, no comprehensive open‐source library for dynamic modelling of electrochemical reactors exists, and instead ...
Jan F. Pyschik +8 more
wiley +1 more source
A bounded dynamical network of curves and the stability of its steady states
Mathematical Methods in the Applied Sciences, EarlyView., 2023 In this article, we study the dynamic behavior of a network that consists of curves that are in motion and bounded. We first focus on the construction of the model which is a system of nonlinear partial differential equations (PDEs). This system is subject to four conditions: angle and intersection conditions between the curves at the point that they ...
Ioannis Dassios +2 more
wiley +1 more source
Application of Chybeshev Polynomials in Factorizations of Balancing and Lucas-Balancing Numbers
Boletim da Sociedade Paranaense de Matemática, 2012 In this paper, with the help of orthogonal polynomial especially Chybeshev polynomials of first and second kind, number theory and linear algebra intertwined to yield factorization of the balancing and Lucas-balancing numbers.
Prasanta Kumar Ray
doaj
Minkowski’s inequality and sums of squares
Open Mathematics, 2014 Frenkel Péter, Horváth Péter
doaj +1 more source
European Policy Analysis, EarlyView.Abstract Agri‐food policies are in the midst of far‐reaching transitions, including the transformation towards sustainable production and food consumption. The European Green Deal and Farm to Fork Strategy prioritize food safety and animal welfare issues, aiming to transform food systems towards more sustainability.
Giulia Bazzan, Colette S. Vogeler
wiley +1 more source
Macromolecular Reaction Engineering, Volume 16, Issue 6, December 2022., 2022 Two different approaches are used to simulate the fluidization behavior of Geldart A–B particles in fluidized bed reactors operated in the bubbling regime. 2D computational fluid dynamics Euler‐Euler predictions are compared to results of a compartment‐based model with simplified fluid‐dynamics description. The compartmentalized approach is appropriate
Carmine Sabia +5 more
wiley +1 more source
A Subbuteo‐Inspired Rolling Isolation System for Protecting Rigid Blocks
Earthquake Engineering &Structural Dynamics, EarlyView.ABSTRACT This study investigates a Subbuteo‐inspired rolling isolation system (RIS) as an effective means for protecting rigid blocks. The block is assumed to be rigidly connected to a curved base sector, allowing it to roll back and forth freely under dynamic excitations. The intrinsic trait of the proposed isolation concept is that the rigid block is
George C. Tsiatas +2 more
wiley +1 more source